gcc/testsuite/gcc.dg/vect/vect-76.c

   1 /* { dg-require-effective-target vect_int } */
   2
   3 #include <stdarg.h>
   4 #include "tree-vect.h"
   5
   6 #define N 8
   7 #define OFF 4
   8
   9 typedef int aint __attribute__ ((__aligned__(16)));
  10
  11 aint ib[N+OFF] = {0, 1, 3, 5, 7, 11, 13, 17, 0, 2, 6, 10};
  12
  13 int main1 (aint *pib)
  14 {
  15   int i;
  16   int ia[N+OFF];
  17   int ic[N+OFF] = {0, 1, 3, 5, 7, 11, 13, 17, 0, 2, 6, 10};
  18
  19   for (i = OFF; i < N; i++)
  20     {
  21       ia[i] = pib[i - OFF];
  22     }
  23
  24
  25   /* check results:  */
  26   for (i = OFF; i < N; i++)
  27     {
  28      if (ia[i] != pib[i - OFF])
  29         abort ();
  30     }
  31
  32   for (i = 0; i < N; i++)
  33     {
  34       ia[i] = pib[i - OFF];
  35     }
  36
  37
  38   /* check results:  */
  39   for (i = 0; i < N; i++)
  40     {
  41      if (ia[i] != pib[i - OFF])
  42         abort ();
  43     }
  44
  45   for (i = OFF; i < N; i++)
  46     {
  47       ia[i] = ic[i - OFF];
  48     }
  49
  50
  51   /* check results:  */
  52   for (i = OFF; i < N; i++)
  53     {
  54      if (ia[i] != ic[i - OFF])
  55         abort ();
  56     }
  57
  58   return 0;
  59 }
  60
  61 int main (void)
  62 {
  63   check_vect ();
  64
  65   main1 (&ib[OFF]);
  66   return 0;
  67 }
  68
  69
  70 /* { dg-final { scan-tree-dump-times "vectorized 3 loops" 1 "vect" } } */
  71 /* { dg-final { scan-tree-dump-times "Vectorizing an unaligned access" 0 "vect" } } */
  72